* {
	padding: 0;
	margin:0;
	}
ul {
	list-style:none;
	}
.float {
	float: left;
	}
.clear {
	clear: both;
	}
#container {
	width:960px;
	margin: auto;
	}
#header {
	background-color:#999999;
	height: 150px;
	}
#content {
	width: 660px;
	text-align: center;

	}
#sidebar_left {
	text-align: center;
	background-color:#CCCCCC;
	width: 150px;
	}
#sidebar_right {
	background-color:#CCCCCC;
	width: 90px;
	}
#footer {
	background-color:#999999;
	text-align:center;
	}
